First pass at packaging.
pyflakes passes.
flake8 setup.py
flake8 passes
Fix _some_ pylint stuff.
Exclude data directories from flake8's wrath
Merge pull request #10 from asottile/packaging

Better linting and packaging.
Use yelp_cheetah for cheetah support.
Add 'all the directives' cheetah test.
Remove remnants of old Cheetah days.